The International Large Detector: Letter of Intent
The ILD Concept Group

TL;DR
The ILD is a highly granular, precision-focused detector concept designed for the ILC to enable detailed measurements in a clean lepton collider environment, complementing LHC physics.
Contribution
This paper presents the detailed design and integration plan of the ILD detector optimized for the ILC's precision physics program.
Findings
Design achieves high spatial resolution and particle reconstruction capabilities.
Mechanical and operational integration for push-pull detector scheme.
Calorimetry and tracking systems optimized for particle flow analysis.
Abstract
The International Large Detector (ILD) is a concept for a detector at the International Linear Collider, ILC. The ILC will collide electrons and positrons at energies of initially 500 GeV, upgradeable to 1 TeV. The ILC has an ambitious physics program, which will extend and complement that of the Large Hadron Collider (LHC). A hallmark of physics at the ILC is precision. The clean initial state and the comparatively benign environment of a lepton collider are ideally suited to high precision measurements. To take full advantage of the physics potential of ILC places great demands on the detector performance. The design of ILD is driven by these requirements. Excellent calorimetry and tracking are combined to obtain the best possible overall event reconstruction, including the capability to reconstruct individual particles within jets for particle ow calorimetry. This requires excellent…
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Particle Detector Development and Performance · Dark Matter and Cosmic Phenomena
